CN205778350U - safety radiation door - Google Patents

Abstract

The utility model discloses a safe radiation-proof door, which comprises a door frame, a door plate which can be movably opened and closed on the door frame, a driving mechanism which is connected with and drives the door plate to move, a first electromagnetic component which is arranged on the corresponding positions of the door frame and the door plate and can be mutually attracted, and a second electromagnetic component which is arranged on the corresponding positions of the door frame and the door plate and has magnetism when power is cut off and has the same magnetic pole; in a door closing state, the magnetic poles of the first electromagnetic assembly are opposite and attract each other, and the door plate is attracted to the door frame; when the door is opened, the magnetic poles of the first electromagnetic assemblies are the same and repel each other, and the door plate is pushed out of the door frame; under the condition of power failure, the magnetic poles of the second electromagnetic assemblies are the same and repel each other, and the door plate is pushed out of the door frame. The utility model discloses a radiation door is prevented safely, door plant actuation or repulsion under the first electromagnetic component circular telegram condition realize that the door plant opens and shuts under the door frame to there is magnetism and the setting of the same second electromagnetic component of magnetic pole through circular telegram no magnetism, outage, realize pushing away the door plant from the door frame under the outage condition, help staff's safety to leave.

Description

safety radiation door

technical field

The utility model relates to the technical field of radiation protection, in particular to a safe radiation protection door.

Background technique

Usually, the production and testing of electronic products need to be carried out in a radiation-proof and shielded room. Because the door of this room needs frequent switch, so the radiation-proof sealing of door and frame is just very important. At the same time, the door needs to be opened conveniently or automatically in an emergency to facilitate escape. The opening of the door has two directions of movement: longitudinal movement (that is, movement perpendicular to the door panel) and lateral movement (that is, movement in the horizontal direction). Usually, the opening sequence of the door is: the door moves vertically, leaves the door frame, and is in place, and the door panel moves laterally to be in place, that is, the door is opened, and the movable threshold is raised. Otherwise, the door closes.

The door of the existing shielding room is automatically opened and closed by mechanical components such as levers. It cannot be opened in an emergency, especially in the case of a power failure. The door is closed on the door frame by the mechanical component and cannot be opened, so that the staff cannot leave. Shielded room, unsafe to use.

Utility model content

The technical problem to be solved by the utility model is to provide a safe anti-radiation door that can be opened and closed when the power is cut off.

The technical solution adopted by the utility model to solve the technical problem is to provide a safe radiation-proof door, including a door frame, a door panel that can be opened and closed on the door frame, a driving mechanism that is connected and drives the door panel to move, and is arranged on The first electromagnetic assembly that can be attracted to each other on the corresponding position on the door frame and the door panel, and the non-magnetic when the power is on and the magnetic when the power is off, and the same magnetic poles are arranged on the corresponding position on the door frame and the door the second electromagnetic assembly;

In the door-closed state, the magnetic poles of the first electromagnetic assembly are opposite and attract each other, and the door panel is attracted to the door frame; in the door-open state, the magnetic poles of the first electromagnetic assembly are the same and repel each other, and the door panel is attracted Pushing out the door frame; in the case of power failure, the magnetic poles of the second electromagnetic components are the same and repel each other, pushing the door panel out of the door frame.

Preferably, the safety radiation protection door further includes a longitudinal guide mechanism that guides the door panel to move back and forth in a direction perpendicular to the door frame, and a lateral guide mechanism that guides the door panel to translate relative to the door frame; the longitudinal guide mechanism and the lateral guide mechanism The guiding mechanisms are all arranged on the top of the door frame.

Preferably, the longitudinal guide mechanism includes at least one first guide rail installed on the top of the door frame perpendicular to the door panel, a first roller that can roll fit in the first guide rail, and a first roller connected to the first guide rail. on the first suspension shaft;

The lateral guide mechanism includes at least one second guide rail parallel to the door panel, a second roller that can roll and fit in the second guide rail, and a second suspension shaft connected to the second roller; The second guide rail is located at the top of the door frame and connected below the first guide rail through the first suspension shaft;

The door panel is connected under the second guide rail through the second suspension shaft, so that the door panel is suspended on one side of the door frame, and moves back and forth in the second guide rail to move away from or Translating in the direction close to the door frame; the second guide rail rolls back and forth in the first guide rail through the first roller, driving the door panel to move back and forth in a direction perpendicular to the door frame relative to the door frame.

Preferably, the drive mechanism includes a longitudinal drive mechanism that drives the door panel to move back and forth in a direction perpendicular to the door frame, and a transverse drive mechanism that drives the door panel to translate relative to the door frame; both the longitudinal drive mechanism and the transverse drive mechanism Set on top of the door frame.

Preferably, the longitudinal driving mechanism includes at least one retractable first push rod installed on the top of the door frame perpendicular to the door panel, and a first electromagnet fixed below the first push rod, the first An electromagnet attracts the second guide rail through magnetic force;

When the first push rod is extended, the first electromagnet drives the second guide rail to move away from the door frame in a direction perpendicular to the door frame, thereby driving the door panel to move away from the door frame;

When the first push rod is shortened, the first electromagnet drives the second guide rail to move in a direction perpendicular to the door frame to move close to the door frame, thereby driving the door panel to move close to and fit on the door frame superior.

Preferably, the lateral drive mechanism includes at least one transmission wheel distributed along the length direction of the second guide rail, a chain wrapped around the transmission wheel, a motor that drives the chain to rotate for transmission, and an electrified magnetic The second electromagnet; the second electromagnet is fixed on the top of the door panel, and when energized, it magnetically attracts the chain and moves horizontally as the chain rotates.

Preferably, the safety radiation protection door further includes a sealing assembly for sealing between the door panel and the door frame;

The sealing assembly includes a sealing groove arranged on the periphery of the door frame, and an annular door sealing boss arranged on the surface of the door panel facing the door frame corresponding to the sealing groove, the door sealing boss It can be detachably engaged in the sealing groove.

Preferably, the safety radiation protection door further includes a threshold that can be raised and lowered at the bottom of the door frame, and a lifting mechanism that drives the threshold to go up and down.

Preferably, the lifting mechanism includes a telescopic second push rod connected to the door sill; the second push rod pushes the door sill up to fill the bottom of the door frame after the door panel leaves the door frame.

Preferably, the safety radiation protection door further includes a slope provided on the ground outside the door frame.

In the safe anti-radiation door of the present utility model, the door panels attract and close or repel each other when the first electromagnetic component is energized, so that the door panel can be opened and closed under the door frame, and the second electromagnetic assembly with the same magnetic pole and non-magnetic when energized and powered off is magnetic. The arrangement of components enables the door panel to be pushed away from the door frame in case of power failure, which is convenient for opening and helps the staff to leave safely.

Description of drawings

The utility model will be further described below in conjunction with accompanying drawing and embodiment, in the accompanying drawing:

Fig. 1 is a schematic diagram of the structure when the safety radiation protection door of an embodiment of the present invention is closed;

Fig. 2 is a schematic structural view of the safety radiation protection door of an embodiment of the present invention when it is opened;

Fig. 3 is a schematic structural view of the longitudinal guide mechanism in Fig. 1;

Fig. 4 is a schematic structural view of the lateral guide mechanism in Fig. 1;

FIG. 5 is a side view of FIG. 1 .

detailed description

In order to have a clearer understanding of the technical features, purposes and effects of the utility model, the specific implementation of the utility model is described in detail with reference to the accompanying drawings.

The safety anti-radiation door of the utility model is used in a shielding room, such as a shielding room for the manufacture and testing of electronic products, for staff to enter and exit the shielding room when it is opened and closed, and is closed during the use of the shielding room to prevent radiation role.

As shown in Figures 1 and 2, the safety radiation protection door of an embodiment of the present utility model includes a door frame 10, a door panel 20 that can be opened and closed on the door frame 10, a drive mechanism that connects and drives the door panel 20 to move, and is arranged on the door frame 10. The first electromagnetic assembly that can attract and engage with the corresponding position on the door panel 20 , and the second electromagnetic assembly that is provided on the corresponding position on the door frame 10 and the door panel 20 is non-magnetic when powered on, magnetic when powered off, and has the same magnetic pole. In the state of closing the door, the magnetic poles of the first electromagnetic assembly are opposite and attract each other, and the door panel 20 is attracted to the door frame 10; in the state of opening the door, the magnetic poles of the first electromagnetic assembly are the same and repel each other, pushing the door panel 20 out of the door frame 10; Under normal circumstances, the magnetic poles of the second electromagnetic assembly are the same and repel each other, and the door panel 20 is pushed out of the door frame 10, so that the door panel 20 is pushed away from the door frame 10 when the power is off, which is convenient for opening and helps the staff to leave safely.

Wherein, the size of the door panel 20 is larger than that of the door frame 10, so that when the door panel 20 is closed on the door frame 10, it covers the door frame 10 to facilitate the sealing arrangement between the two.

In order to realize the sealing between the door panel 20 and the door frame 10 , the safety radiation protection door further includes a sealing assembly for sealing between the door panel 20 and the door frame 10 . The sealing assembly may include a matching sealing groove 11 and a sealing boss (not shown), and the door sealing boss can be detachably engaged in the sealing groove 11 . Preferably, the sealing groove 11 is arranged on the periphery of the door frame 10 and is in the shape of a ring as a whole, and the door sealing boss corresponding to the sealing groove is arranged on the surface of the door panel 20 facing the door frame 10 and is in the shape of a ring as a whole. When the door panel 20 is fitted onto the door frame 10 , the sealing boss is aligned and snapped into the sealing groove 11 to seal the gap between the door panel 20 and the door frame 10 .

The sealing groove 11 can be made of soft rubber, and the inner width of the groove can be equal to or smaller than the width of the sealing boss. When the sealing groove 11 and the sealing boss are matched, the sealing boss can be squeezed into the sealing groove 11 inside, forming a tight fit.

The first electromagnetic assembly includes a first electromagnetic part 12 arranged on the door frame 10 and a second electromagnetic part (not shown) arranged on the door panel 20; the first electromagnetic part 12 can be one or more, distributed around the door frame 10 On at least one side of the door frame 20 , such as preferably on two opposite sides of the door frame 20 ; Specifically, the first electromagnetic component 12 is located on the periphery of the sealing groove 11 on the door frame 10 , and the second electromagnetic component is located on the periphery of the sealing boss. When the first electromagnetic component attracts the door panel 20 to the door frame 10 , it also drives the sealing boss to snap into the sealing groove 11 .

The first electromagnetic component is magnetically energized, and the magnetic poles can be controlled by energizing. For example, when closing the door, the first electromagnet 12 is energized to control its magnetic pole to N pole or S pole, and the second electromagnet is energized to control its magnetic pole to be S pole or N pole opposite to the first electromagnet 12 magnetic pole. The magnetic poles of the electromagnets are opposite and attract each other, and the door panel 20 will be tightly attracted on the door frame 10 . On the contrary, when the door is opened, the magnetic poles of the first electromagnet 12 and the second electromagnet will be controlled to be the same magnetic pole, so that the two repel each other, and the door panel 10 will be pushed out of the door frame 20 .

The second electromagnetic assembly may also include a third electromagnetic component 13 disposed on the door frame 10 and a fourth electromagnetic component (not shown) disposed on the door panel 20 , and the arrangement method may refer to the first electromagnetic assembly. The third electromagnet 13 is located on the periphery of the sealing groove 11 on the door frame 10 , and the fourth electromagnet is located on the periphery of the sealing boss.

The second electromagnetic assembly is non-magnetic when power is on and magnetic when power is off, and the magnetic poles of the third electromagnetic part 13 and the fourth electromagnetic part are the same when the power is on, so that the two repel each other. Therefore, in the case of power failure, the first electromagnetic assembly is non-magnetic, while the third electromagnetic component 13 and the fourth electromagnetic component repel each other, and the door panel 10 will be pushed out of the door frame 20 .

The movement of the door panel 20 relative to the door frame 10 includes movement in two directions: longitudinal movement (ie, movement perpendicular to the surface of the door panel 20 ) and lateral movement (ie, horizontal movement). When the door panel 20 is opened, the door panel 20 first moves longitudinally away from the door frame 10 , and then moves laterally away from the door frame 10 , and can be positioned on the wall side adjacent to the door frame 10 . When the door panel 20 is closed, the door panel 20 moves laterally to the front side of the door frame 10 , and then moves longitudinally to fit on the door frame 10 .

A protruding limiting strip 100 can be provided on the wall surface adjacent to the door frame 10 , and after the door panel 20 moves laterally, the limiting strip 100 can be offset against the door panel 20 to limit the swing of the door panel 20 .

In order to realize the longitudinal and lateral movement of the door panel 20, the safety radiation protection door also includes a longitudinal guide mechanism 30 that guides the door panel 20 to move back and forth in a direction perpendicular to the door frame 10, and a lateral guide mechanism 40 that guides the door panel 20 to translate relative to the door frame 10; Both the mechanism 30 and the lateral guide mechanism 40 are arranged on the top of the door frame 10 .

As shown in Figures 1 and 3, wherein, the longitudinal guide mechanism 30 includes at least one vertical door panel 20 installed on the first guide rail 31 at the top of the door frame 10, a first roller 32 that can be rolled and fitted in the first guide rail 31, and connected to the first guide rail 31. The first suspension shaft 33 on the first roller 32. In this embodiment, the longitudinal guide mechanism 30 includes four first guide rails 31, which are distributed on the top of the door frame 10 at intervals, and each first guide rail 31 is provided with a first roller 32 and a first suspension shaft. 33. When the first roller 32 rolls back and forth in the first guide rail 31 , it drives the first hanging shaft 33 to move back and forth in a direction perpendicular to the surface of the door panel 20 (or the door frame 10 ). One end of the first hanging shaft 33 is connected to the first roller 32 , and the other end faces toward the bottom of the door frame 10 to connect to the second guide rail 41 .

As shown in Figures 1 and 4, the lateral guide mechanism 40 includes at least a second guide rail 41 parallel to the door panel 20 (door panel 20 surface), a second roller 42 that can roll and fit in the second guide rail 41, and a second roller 42 connected to the second guide rail 41. The second hanging shaft 43 on the roller 42 ; the second guide rail 41 is located at the top of the door frame 10 and connected below the first guide rail 31 through the first hanging shaft 33 . When the second roller 42 rolls back and forth in the second guide rail 41 , it drives the second hanging shaft 43 to move back and forth in a direction parallel to the surface of the door panel 20 . One end of the second hanging shaft 43 is connected to the second roller 42 , and the other end faces toward the bottom of the door frame 10 to connect to the door panel 20 .

1, 3, 4, the door panel 20 is connected below the second guide rail 41 through the second hanging shaft 43, so that the door panel 20 is suspended on one side of the door frame 10, and moves back and forth in the second guide rail 41 to move away from the door panel 20 through the second roller 42. Or close to the door frame 10; the second guide rail 41 rolls back and forth in the first guide rail 31 through the first roller 32, driving the door panel 20 to move back and forth in the direction perpendicular to the door frame 10 relative to the door frame 10.

The drive mechanism includes a longitudinal drive mechanism 50 that drives the door panel 20 to move back and forth in a direction perpendicular to the door frame 10, and a horizontal drive mechanism 60 that drives the door panel 20 to translate relative to the door frame 10; When the longitudinal drive mechanism 50 operates, the door panel 20 moves back and forth vertically to the door frame 10 under the guidance of the longitudinal guide mechanism 30 ;

As shown in Figures 1 and 2 again, wherein the longitudinal drive mechanism 50 includes at least one vertical door panel 20 installed on the telescopic first push rod 51 at the top of the door frame 10, and a first electromagnetic push rod fixed below the first push rod 51. Iron 52, the first electromagnet 52 attracts the second guide rail 41 through magnetic force. The first push rod 51 is connected to the first electromagnet 52 through its movable end, and the first push rod 51 has a built-in motor, which drives the telescopic movement of the movable end.

When the first push rod 51 is extended, the first electromagnet 52 drives the second guide rail 41 to move away from the door frame 10 in the direction perpendicular to the door frame 10, thereby driving the door panel 20 to move away from the door frame 10; when the first push rod 51 is shortened, The first electromagnet 52 drives the second guide rail 41 to move in a direction perpendicular to the door frame 10 to approach the door frame 10 , thereby driving the door panel 20 to move close to and fit on the door frame 10 .

Horizontal driving mechanism 60 comprises at least one transmission wheel 61 distributed along the lengthwise direction of second guide rail 41, the chain 62 that is covered on the transmission wheel 61, the motor 63 that drives chain 62 to rotate to carry out transmission, and along with chain 62 rotations, horizontal The moving second electromagnet 64 ; the second electromagnet 64 is fixed on the top of the door panel 20 , and when energized, the chain 62 is magnetically attracted and moves horizontally with the rotation of the chain 62 , thereby driving the door panel 20 to move horizontally. The motor 63 is preferably a geared motor. The second electromagnet 64 is an electromagnet that has magnetism when it is powered on and has no magnetism when it is powered off. When the power is off, it releases the attraction to the chain 62 to facilitate the movement of the door panel 20 by manpower.

In addition, the transverse driving mechanism 60 also includes a sprocket 65 disposed on the rotation shaft of the motor 63 , the chain 62 wraps around the sprocket 65 , and the motor 63 drives the chain 62 to rotate by driving the sprocket 65 to rotate.

The winding of the chain 62 on the transmission wheel 61 and the sprocket 65 forms a closed chain ring, the longitudinal drive mechanism 50 and the longitudinal guide mechanism 30 are located in the inner ring of the chain ring, and the second guide rail 41 is partially or entirely located in the inner ring of the chain ring.

As shown in FIG. 5 , in this embodiment, the safety radiation protection door further includes a threshold 70 that can be raised and lowered at the bottom of the door frame 10 , and a lifting mechanism 80 that drives the threshold 70 to rise and fall. When the door panel 20 is closed on the door frame 10, the threshold 70 is in a lowered state and is located below the door panel 20; when the door panel 20 leaves the door frame 10, the door frame 10 rises under the drive of the lifting mechanism 80, and the bottom of the door frame 10 (the door panel 20 in the closed state) The position of the bottom) is filled.

As an option, the lifting mechanism 80 may include a telescopic second push rod connected to the threshold; the telescopic action of the second push rod drives the threshold 70 to rise or fall; the second push rod drives the threshold 70 to rise after the door panel 20 leaves the door frame 10 Fill up the bottom of the door frame 10. The structure and principle of the second push rod can refer to the first push rod 51 .

In addition, as shown in Figures 1 and 2, the safety radiation protection door of the present invention can also include a slope 90 arranged on the ground outside the door frame 10, and the slope 90 is connected to the bottom of the door frame 10 at intervals, so that it is convenient for staff or tool trolleys to enter and exit freely. hinder. The distance between the slope 90 and the door frame 10 is approximately equal to or greater than the thickness of the door panel 20 , and the width of the threshold 70 is approximately equal to the distance between the slope 90 and the door frame 10 . After the door panel 20 leaves the door frame 10, the threshold 70 rises and connects between the slope 90 and the bottom of the door frame 10, and connects with the slope 90 to form a ramp passage.

When the safety anti-radiation door of the present utility model is opened and closed under power-on, the first push rod 51 moves to drive the first electromagnet 52 to move back and forth in the direction vertical to the door frame 10, thereby driving the second guide rail 41 to move, and then driving the door panel 20 and the door panel 20 Move away from the door frame 10 or approach the door frame 10 . When the door panel 20 moves toward the door frame 10 or leaves the door frame 10, the sealing boss engages or disengages from the sealing groove 11; when the door is closed, the first electromagnetic assembly attracts the door panel 20 to the door frame 10, and when the door is opened, the second An electromagnetic assembly repels and pushes the door panel 20 away from the door frame 10 . When the door panel 20 is pushed out of the door frame 10, the lateral drive mechanism 60 starts, and the motor 63 rotates to drive the chain 62 to rotate, thereby pulling the second electromagnet 64 and the door panel 20 to move horizontally.

In the case of mains power failure, the emergency power supply is automatically connected; when both the mains power supply and the emergency power supply fail, the second electromagnetic component has magnetism and the magnetic poles are the same and repel each other, and the door panel 20 is automatically pushed out of the door frame 10, so that the door panel 20 Form the free hanging state, at this moment, the door panel 20 can be pushed open laterally by manpower, which is convenient for escape, safe and reliable.

The above is only an embodiment of the utility model, and does not limit the patent scope of the utility model. Any equivalent structure or equivalent process conversion made by using the utility model specification and accompanying drawings, or directly or indirectly used in other Related technical fields are all included in the patent protection scope of the present utility model in the same way.

Claims (10)

1. A safe anti-radiation door, characterized in that it includes a door frame (10), a door panel (20) that can be opened and closed on the door frame (10), and a drive mechanism that is connected and drives the door panel (20) to move , a first electromagnetic assembly that can be attracted to each other arranged at corresponding positions on the door frame (10) and the door panel (20), and a corresponding electromagnetic assembly arranged on the door frame (10) and the door panel (20) A second electromagnetic component with the same magnetic poles at the corresponding position that is non-magnetic when powered on, magnetic when powered off, and has the same magnetic pole; In the state of closing the door, the magnetic poles of the first electromagnetic assembly are opposite and attract each other, and the door panel (20) is attracted to the door frame (10); in the state of opening the door, the magnetic poles of the first electromagnetic assembly are the same and in phase Push the door panel (20) out of the door frame (10); in the case of power failure, the magnetic poles of the second electromagnetic assembly are the same and repel each other, push the door panel (20) out of the door frame (10) . 2. The safety radiation protection door according to claim 1, characterized in that, the safety radiation protection door further comprises a longitudinal guide mechanism (30) that guides the door panel (20) to move back and forth in a direction perpendicular to the door frame (10) ), and a lateral guide mechanism (40) that guides the door panel (20) to translate relative to the door frame (10); the longitudinal guide mechanism (30) and the lateral guide mechanism (40) are both arranged on the door frame (10) the top of. 3. The safety radiation protection door according to claim 2, characterized in that, the longitudinal guide mechanism (30) comprises at least one first guide rail installed on the top of the door frame (10) perpendicular to the door panel (20) (31), a first roller (32) that can roll fit in the first guide rail (31), and a first suspension shaft (33) connected to the first roller (32); The lateral guide mechanism (40) includes at least one second guide rail (41) parallel to the door panel (20), a second roller (42) that can roll fit in the second guide rail (41), and a connecting The second hanging shaft (43) on the second roller (42); the second guide rail (41) is located on the top of the door frame (10) and connected to the Below the first guide rail (31); The door panel (20) is connected below the second guide rail (41) through the second hanging shaft (43), so that the door panel (20) hangs on one side of the door frame (10) and passes through the The second roller (42) moves back and forth in the second guide rail (41) and translates in the direction away from or close to the door frame (10); the second guide rail (41) passes the first roller (32) in the The first guide rail (31) rolls back and forth, driving the door panel (20) to move back and forth relative to the door frame (10) in a direction perpendicular to the door frame (10). 4. The safety radiation protection door according to claim 3, characterized in that, the drive mechanism includes a longitudinal drive mechanism (50) that drives the door panel (20) to move back and forth in a direction perpendicular to the door frame (10), and A horizontal driving mechanism (60) driving the door panel (20) to translate relative to the door frame (10); the longitudinal driving mechanism (50) and the horizontal driving mechanism (60) are both arranged on the top of the door frame (10). 5. The safety radiation protection door according to claim 4, characterized in that, the longitudinal driving mechanism (50) comprises at least one telescopic shaft mounted on the top of the door frame (10) vertically to the door panel (20). The first push rod (51), and the first electromagnet (52) fixed under the first push rod (51), the first electromagnet (52) attracts the second guide rail (41) by magnetic force ); When the first push rod (51) is extended, the first electromagnet (52) drives the second guide rail (41) away from the door frame (10) in the direction perpendicular to the door frame (10) direction, thereby driving the door panel (20) to move away from the door frame (10); When the first push rod (51) is shortened, the first electromagnet (52) drives the second guide rail (41) to approach the door frame (10) in a direction perpendicular to the door frame (10) move, so as to drive the door panel (20) to move close to and fit on the door frame (10). 6. The safety radiation protection door according to claim 4, characterized in that, the lateral drive mechanism (60) includes at least one transmission wheel (61) distributed along the length direction of the second guide rail (41), winding around The chain (62) on the transmission wheel (61), the motor (63) that drives the chain (62) to rotate for transmission, and the second electromagnet (64) that is energized and magnetic; the second electromagnet The iron (64) is fixed on the top of the door panel (20), magnetically attracts the chain (62) and moves horizontally as the chain (62) rotates when energized. 7. The safety radiation protection door according to any one of claims 1-6, characterized in that, the safety radiation protection door further comprises a sealing assembly for sealing between the door panel (20) and the door frame (10) ; The sealing assembly includes a sealing groove (11) arranged on the periphery of the door frame (10), and a sealing groove (11) arranged on the door panel (20) facing the door frame (10) corresponding to the sealing groove (11). There is an annular door sealing boss on the surface, and the door sealing boss can be detachably engaged in the sealing groove (11). 8. The safety radiation protection door according to any one of claims 1-6, characterized in that, the safety radiation protection door further includes a threshold (70) that can be lifted and lowered at the bottom of the door frame (10), and a drive A lifting mechanism (80) for lifting the threshold (70). 9. The safety radiation protection door according to claim 8, characterized in that, the lifting mechanism (80) includes a telescopic second push rod connected to the threshold (70); After the door panel (20) leaves the door frame (10), the threshold is pushed up to fill the bottom of the door frame (10). 10. The safety radiation protection door according to any one of claims 1-6, characterized in that, the safety radiation protection door further comprises a slope (90) arranged on the ground outside the door frame (10).